Heat a cast-iron skillet or non-stick pan over medium heat. Once it’s hot, add the sunflower seeds and toast them for 2 to 3 minutes, stirring occasionally until golden and fragrant.
Transfer the toasted sunflower seeds to a blender or food processor. Add the fresh basil, garlic powder, salt, olive oil, and nutritional yeast (optional). Blend until a thick paste forms, pausing as needed to scrape down the sides and push the ingredients toward the blade, but only when the blender is off.
Use right away, or store in the refrigerator for up to 5 days. For longer storage, freeze in a sealed container.
Notes
To freeze, pour the pesto into a mason jarand add a bit of olive oil on top to act as a seal to prevent oxidation. Then, close with a lid.
I blend my pesto on a low “liquid” setting on my blender.
If you want a boost of umami or "cheesiness" in this pesto recipe, add 1-2 tablespoons of nutritional yeast.